10 years after a cyborg named The Terminator failed to kill Sarah Connor and her unborn son John Connor, the prophesied future leader of a resistance fighting against the machines and a more advanced and deadlier terminator named T-1000 gets sent to kill John. However, Sarah and John do not have to face this threat alone. The resistance sends another Terminator, identical to the one that failed to kill Sarah, back through time to protect them.